====== SectionFlags ======

{{:en:mervis-ide:35-help:img_10.png?180}}

==== Block name ====

SectionFlags

==== ST call ====

<code st-iec>
   PROGRAM TEST_SectionFlags
       VAR
         USINT1: USINT;
          BOOL1,BOOL2,BOOL3,BOOL4,BOOL5,BOOL6,BOOL7: BOOL;
        END_VAR
     FB(Flags:=USINT1, InternalWarning:= BOOL1, ExternalWarning:= BOOL2
  FireAlarm:= BOOL3, IntruderAlarm:= BOOL4, PanicAlarm:= BOOL5, EntryDelay:=
  BOOL6, Exithelay:= BOOL7);
  END_PROGRAM
</code>
==== Library ====

LIB\JABLOTRON

==== Version ====

V1.0

\\



----

==== Description ====

The block divides the Flags input value into individual bits. These bits are then represented on the output.

==== Inputs ====

^Input^Type ^Description                 ^Default value^
|Flags|USINT|Current flags of the section|0            |

==== Outputs ====

^Output         ^Type^Description                ^
|InternalWarning|BOOL|Internal alarm horn message|
|ExternalWarning|BOOL|External alarm horn message|
|FireAlarm      |BOOL|Fire alarm                 |
|IntruderAlarm  |BOOL|Intruder alarm             |
|PanicAlarm     |BOOL|Panic alarm                |
|EntryDelay     |BOOL|Entry delay                |
|ExitDelay      |BOOL|Exit delay                 |

==== Function ====

The block reads the section’s flag value containing info about all flags of the section. The read value is transformed into an individual bit according to a bitmask. Each bit is written onto the corresponding output. According to its position, the bit may have multiple meanings, as listed in the table below.

==== Bitmask ====

^Bit position^Bit meaning       ^
|1           |Internal Warning  |
|2           |External Warning  |
|4           |Fire Alarm        |
|8           |Intruder Alarm    |
|16          |Panic Alarm       |
|32          |Entry Delay       |
|64          |Exit Delay        |
|0           |Default flag value|

\\



----

==== Application example ====

{{:en:mervis-ide:35-help:img_11.png}}

A **Section_Flag** read from a control module is connected to the **Flags** input. All outputs must be connected. Output values have multiple uses, ie. in a web interface for state indication or can serve as a trigger for sending notification or activation of the facility’s security protocols.